Answer:
There is alredy a treaty called Geneva Gas Protocol that banned the use of these weapons
The Geneva Gas Protocol, in full Protocol for the Prohibition of the Use in War of Asphyxiating, Poisonous or Other Gases, and of Bacteriological Methods of Warfare, in international law, treaty signed in 1925 by most of the world’s countries banning the use of chemical and biological weapons in warfare. It was drafted at the 1925 Geneva Conference as part of a series of measures designed to avoid repetition of the atrocities committed by the belligerents in World War I.
The problem is that it is difficult to implement but a good measure would be very high fines to the countries that produce or stockpile these weapons.
George Washington is the first president
it happened on April 9 1865 in Appomattox country which is in Virginia. the significant union leaders were Ulysses s grant Thomas m Harris George g Meade phillip Sheridan and Edward o.c ord the significant confederate generals were robert e Lee, henery l Benning and John Gordon
the union has lost/wounded 152 soldiers and the confederates lost around 195 soldiers 305 were wounded and 26000 and 28000 were captured
It was a law mandating religious tolerance for Trinitarian Christians.